Table 1.
Clinical and diagnostic features in affected Maltese family with mitral valve prolapse

Dog	Relationship	Age (yr) at ISACHC I heart failure	Age (yr) at ISACHC II heart failure	Age (yr) at ISACHC III heart failure	Current echocardiographical status (LA/Ao ratio; LVIDd/Ao ratio; mitral E-peak; MR velocity)	Other cardiac abnormalities	Other diseases
A	Father	9	11	12	2.6; 3.5; 1.87 m/s; 4.87 m/s	TR (2.8 m/s, PHT (3.2 m/s), SVT with sinus arrest
B	Mother	10	11	12	2.1; 3.2; 1.43 m/s; 5.21 m/s	None	Pyometra, mammary gland tumors
C	Son	6	8	10	2.0; 2.8; 1.23 m/s; 4.81 m/s	None	None
D	Son	6	8	9	1.9; 2.5; 1.32 m/s; 4.57 m/s	None	None
E	Daughter	6	7	8	Expired	None	None
F	Daughter	6	8	10	2.7; 3.8; 1.97 m/s; 5.33 m/s	None	None